lunge vs knife thrust

lunge and knife thrust both are nouns.

Word	Noun	Adjective	Verb	Adverb
lunge	Yes	No	Yes	No
knife thrust	Yes	No	No	No

As nouns, knife thrust is a hypernym of lunge; that is, knife thrust is a word with a broader meaning than lunge:

lunge: (fencing) an attacking thrust made with one foot forward and the back leg straight and with the sword arm outstretched forward
knife thrust: a strong blow with a knife or other sharp pointed instrument

Other hypernyms of lunge include stab, thrust.

lunge (noun)	knife thrust (noun)
the act of moving forward suddenly	a strong blow with a knife or other sharp pointed instrument
(fencing) an attacking thrust made with one foot forward and the back leg straight and with the sword arm outstretched forward

lunge (verb)	knife thrust (verb)
make a thrusting forward movement